Hi @cma11en ,
there are a several posts with this issue. In 99% it’s capacitors fault. So disassemble your TV to the PCBAs and visually check the assembled capacitors, if there is no visible damage, you will have harder work, because the capacitors are having some electronics properties, but you will never measure the right value (in-circuit measuring), for 100% test your capacitors, you have to un-solder capacitors and measure the capacity by capacity test and rechargeable curve (also discharging curve), then compare the characteristics with the datasheet. So I’m suggesting you exchange all of the electrolyte capacitors on the power board (assuming to your power’s PCBA is without visual damage). The cost of the capacitors will be near to 5$ per all, so it’s very cheap repair…
For this repair you don’t need knowledge about measuring by multimeter or by an oscilloscope, it’s beginner soldering.
For more details and confirming please visit cnet forum with the same post.
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